feat: promote rc test

Author: lachen-nv

.github/workflows/promotion-rc.yaml

@@ -82,7 +82,7 @@ jobs:
           # Find highest existing rc for this version
           # We grep for exact version match followed by -rc.N
           EXISTING_RCS=$(git tag -l | grep -E "^v?${NEW_VERSION}-rc\.[0-9]+$" | sort -V | tail -n 1 || echo "")
-          
+          echo "Existing RCs: $EXISTING_RCS"
           if [ -z "$EXISTING_RCS" ]; then
             # No RC exists yet, start at 1
             NEXT_RC=1
@@ -121,7 +121,8 @@ jobs:
     uses: NVIDIA/dsx-github-actions/.github/workflows/promote-image.yml@main
     with:
       source: nvcr.io/0837451325059433/carbide-dev/nvmetal-carbide
-      source_tag: main-${{ needs.calculate-release-candidate-version.outputs.short_sha }}
+      # source_tag: main-${{ needs.calculate-release-candidate-version.outputs.short_sha }}
+      source_tag: main-f38a72b
       destination: nvcr.io/0837451325059433/carbide/nvmetal-carbide
       destination_tag: ${{ needs.calculate-release-candidate-version.outputs.rc_version }}
     secrets: